Electromagnetic cannon demonstration instrument

Abstract

The invention provides an electromagnetic cannon demonstration instrument. The electromagnetic cannon demonstration instrument comprises a cannon barrel, a canvas, a round opening, an annular bulge and locking screws, and is characterized in that the cannon barrel is in a circular barrel shape; the inner diameter of the cannon barrel is greater than the outer diameter, which is 4mm, of a bore; the canvas, which is 2cm thick, is stuck on the bottom of the barrel; the plurality of screws, the annular bulge and the round opening are arranged from a barrel opening to the bottom of the barrel in sequence; the four locking screws are symmetrically distributed along the barrel opening; the inner diameter of the annular bulge is smaller than the outer diameter, which is 4mm, of the bore, and the width of the annular bulge is 5mm; the round opening with the diameter which is 5cm is formed in the part which is tightly close to the annular bulge; and the cannon barrel is made of transparent plastic. When the electromagnetic cannon demonstration instrument is used, a barrel opening of the cannon barrel sleeves the bore and the round opening is formed downwards; and the locking screws are screwed off. After a cannon is launched from the bore, the cannon flies in the cannon barrel and is launched to the canvas to be rebounded and then falls onto the ground from the round opening. Therefore, damages to human bodies, which are possibly caused, are completely avoided after bullets are launched from the bore.

Description

technical field [0001] The invention relates to a teaching aid, in particular to an electromagnetic gun demonstrator. Background technique [0002] The electromagnetic gun demonstrator is widely loved by students because the shells can be used repeatedly. Because the shells are fired from the barrel at a relatively fast speed, the fired bullets fly in the air without protective facilities, which is dangerous to a certain extent. There is a desire to develop an electromagnetic gun that is both demonstrable and safe. Contents of the invention [0003] Aiming at the existing problems, the invention provides an electromagnetic gun demonstrator, which is simple in design, convenient in use and obvious in effect. [0004] The technical solution adopted by the present invention to solve the technical problem is: an electromagnetic gun demonstration instrument, including a gun barrel, a canvas, a circular opening, an annular protrusion and a locking screw, and it is characterized...

AI Technical Summary

Problems solved by technology

[0002] The electromagnetic gun demonstrator is widely loved by students because the shells can be used repeatedly. Because the shells are fired from the barrel at a high speed, and the fired bullets fly in the air without protective facilities, there is a certain degree of danger.

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